Central hinged window



May 9, 1933- H. E. CAMPBELL 1,908,285

CENTRAL HI NGED- VWI NDOW Filed Dec. l0, 1931 2 Sheets-Sheet 1 lll/111111171P l g lllllzllllllllll/llllll. Il

INVENTOR ATTORNEYS May 9, 1933. H. E. CAMPBELL CENTRAL HINGED wINDow Filed DeC. lO, 1931 2 Sheets-Sheet 2 INVENTOR CMM 34d x ATTORNEYS Patented May 9,A 1933 UNITED STATES PATENT' OFFICE f HARRY E. CAMPBELL, OF BALTIMORE, IJIARYLAND, ASSIGNOR TO CAMPBELL METAL WINDOW CORPORATION, OF BALTIMDRE, NEARYLAND, A. CORPORATION OF"-MARY i l LAND i CENTRAL HINGED VIINDOW Application filed December 10,1931. Serial No.580,067.

This invention relates to windows of the .type where two sashes are provided in the frame, which sashes are pivoted relative to each other so that their central bars will move outwardly and are so connected to the frame that as the central bars are moved. out the side bars ofthe sashes will move toward the center or the window, following approximately the line ofthe sash. In this applica- 'i Ation I show a particular method of making dot and dash lines.

the frames for windows of this type which may also be used for ordinary Casement windows and show a nparticular method of hinging the sashes together.

' Referring to the drawings where an illustrative example is shown, F ig. 1 Ais'an interior elevation of a windowembodying my and the frame shown in section, and Fig. 6

' is a sectional view through the sill showing dTeil one of the sashes in the position indicated in Fig. 5.

In the form of window here shown, the side members or jambs are each made of two bent members. outwardly extending portion 10 and a hooi; shaped portion 12. Welded into the back of the hook shaped portion 12 is a second member 14 which is L-shaped with its outside part slightly bent outwardly. Felt 16 is positioned in the pocket formed by these two members. The top or lintel member of the frame comprises a member 18 similar in shape to the inner members at the sides bui very considerably higher than those mem-A bers are wide. Velded to it is an L-shaped member 20 and to these two members may be welded a member 22 shaped to form a drip apron 24. The sill is here shown as made up of a single member 26 substan tially similar in shape to member 18 of the lintel. A vertical bar 27 connects member The inner one of these has arr 4 p f window is closed, further toprotectthewindow againstweather. The lintel member18l 26 and member 18 at 'theatres Gramia- `dow.

The sash framesare formedV of made-up tubular sections, 'all of which are substantially identical. Each of these sections comprises an L-shaped member 28 inwhichf'is welded a member 8Oy having its ends parallel with-the sides of `member 28 and its central portion bent to be parallel with hut spaced away from member 28 to form a4 rigid tubu-H larfbar. `Ii dcsired,fthe end ofthe longer vleg ofniember 28 mayflble bent fin as, Shown in the drawings to overlie the edge ofvmember 80. The arrangement of these two members as shown forms averyrigid barwith an appropriate,glassrrabbet and an appropriate recess `for flexible member 32v into which may be snappeda glass` stopv 34 as eXplained'in mv co-pending application, Ser.

No. 503,167, and December 118;1930. Ata,

tached to the outside ofl member 28, forming the bottom rail of each sash, is aplate 35 and a similar plate 37 is attachedtothe outer face of member 28, forming thetop rail of the sash.`

36, is provided with a plate `38 which will overlie the other sash 40 when the window.v is closed, and sash 36 is also provided with felt weather stripping 42 held in place by a metalclip v44.` To cooperate with this sash 40 has an anglememberf46, the edge of which is adaptedv to press into theY felt 42 when the to each other by an arrangement-,of the type.4

- A .75 One of the sashes, here designated as sash known as a lazy tongs which is so construct- Y ed that it will fold up flat. One of these devices is provided at the ,top and a similar device is provided at the bottomof the'window,

but asthertwo are identical, only theV bottom ,one will bedescribed AinV detail.' Near K as indicated at 58 and is pivoted directly to the bottom of member 26, while the upper branch 60 of this fork is pivoted to a bracket 62 mounted on the outer face of member 26. This fork may conveniently be made as a lbronze casting, and to save metal the upper fork and ythe part where the two forks meet may be composed of spaced bars, but this is. not essential.

".Pivoted to bracket 52 of sash 36 is a forked arm 64 similar to but not identical with forked arm 54. The bottom branch 66 of this Vmember pivots about the same pivot as offset portion 58 of fork 54 and the upper branch is pivoted to bracket 62 on the same pivot which is used for attaching fork 54.

Between the branches of these forks are piv oted a second pair of bars 70 and 72. Bars 70 and 72 are pivoted together at 74. The

upper bar 70 is here shown as pivoted to a bracket 6 `carried by sash 40 and at the other endis pivoted to the upper branch of fork v64. The lower bar 72 in like manner is pivs" oted'to a Vbracket 78 carried by lsash 36 and above the other and between the branches of .the forks. When either sash is pushed out,

the other sash will tra-vel with it due to the p 'i lazy'tongs effect and the sashes will be adequately supported by the forks and bars described. Also this structure has one added ladvantage. Windows of this type are frequently used in institutions such as sanitariums and hospitals where precautions have to be taken against patients throwingthemselves from the window. The forks 54 and 64 and the bars 7 0 and 72 serv-e to form a net workv ,filling the space between the sashes when fthel window is open to the position shown in Fig. 5.

In view of the fact that sash 36 carries the extension plate 38, it is desirable that rthis sash be pushed open iirst. Accordingly kthis sash is here shown as provided with the operating handle. This handle 7 9l is pivoted v n to the sash near the ycenter of the window and viso.

vis provided with an integral hook-ed portion 80 adapted to engage lug 82 carried by the -fbar-27. To open the window the handle 7 8 is swung to the right and then on pushing ,against the handle both sashes will open. To close the window, handle 78 is pulled in and then swung to the left until hook 8O engages 111g 8.2-

What claim is:

1. In combination with a window frame, two sashes,rand hinge mechanism connecting snch sashes with the frame adjacent its Vertical axis comprising a member pivoted to each sash and pivoted to the frame along a common. axis, and ay second pair of members pivoted together intermediate their ends and each pivoted at one end to a sash and .at its other` end to that one of said first members which is pivoted to the other sash in such a way that when the sashes are open the sashes and said members will, in all positions, substantially define four parallelograms.

2. A structure as specified in claim 1 in which said pivoted members are adapted to be folded into substantially one straight line.

3. A structure as specified in claim lA in which a set of such pivoted members is'connected to the sashes near but not above their tops in a pla-ne above the bottom of the lintel member of the window frame and another set of such members is connected to the sashes n-ear but not below their bottoms in a plane below the top of the sill member of the window frame, so that when the window is closed said hinge mechanisms will be embraced between the sashes and window frame.v

4. In combination with a window frame,

two sashesr opening horizontally and hingev mechanism connecting such sashes with the frame comprising a member pivoted to each sash at approximately equivalent points thereof and to the frame upon a common axis,keach of said members being approximately of the same length and being forked at the end pivoted to the frame, and a second pair of members each approximately of the same length and pivoted together midway their ends and each pivoted'at one end toa sash and at its otherend to one of the first members so that when the sashes are opened horizontally the second pair of members maintains the sashes approximately equidistant from the frame and so that when'the sashes are closed said second pair of members folds substantially within the forked ends of the first pair, and all of said members are 1 

